Building a 0.5 metre cardboard turbine

This is the result of a few weeks experiments with card, the
turbine will turn in a 0.5 mph wind, (very slow walking pace),
it is a miniature, and simplified version of the real turbines
seen all over the place these days.

I am having some success with a small generator that will
enable this small turbine to demonstrate the power generation
capability of the wind.